JSC2013-E-013520 (4 March 2013) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, the Expedition 35/36 backup crew members are greeted by Russian space officials March 4 as they prepare for a series of qualification simulations in Soyuz and Russian segment trainers. NASA Flight Engineer Michael Hopkins (left), Soyuz Commander Oleg Kotov (center) and Flight Engineer Sergei Ryazanskiy serve as backup crew members for Chris Cassidy of NASA and Russian cosmonauts Pavel Vinogradov and Alexander Misurkin, who are preparing for launch to the International Space Station March 29 (Kazakh time) from the Baikonur Cosmodrome in Kazakhstan in their Soyuz TMA-08M spacecraft. Photo credit: NASA